EXPLORATION OF APPLICATION OF BUILDING PV POWER STATIONS IN ASH STORAGE SITES OF COAL-FIRED POWER PLANTS
Under the goals of emission peak and carbon neutrality,new energy generation with wind power and PV power as the main force is experiencing explosive development.In recent years,under the strategic focus of China's food security,the land policy for PV power generation may be further tightened,becoming one of the main factors restricting investment in PV power stations.If the idle ash storage sites of coal-fired power plants using cogeneration units can be used to build PV power stations,it can not only make reasonable use of the ash storage site,but also solve the site problems during the building of PV power stations,and land resources can be fully utilized.This paper takes the building of a large-scale PV power station using cogeneration units in a coal-fired power plant ash storage yard in Shaoxing City,Zhejiang Province as an example.The feasibility of building such PV power stations is analyzed from three dimensions,that are PV array design,PV power station revenue and emission reduction effect,and the impact of ash storage yard on PV power station construction.The results show that:1)After the completion of the PV power station,1271.51 t of standard coal can be saved annually,and the annual emissions of carbon dioxide,sulfur dioxide,and nitrogen oxides reduced are about 3305.92 t,28.67 t,and 12.72 t,respectively,which plays a positive role in regional energy conservation and emission reduction.2)Under the reasonable arrangement of ash transportation and storage routes,and with a frequency of cleaning PV modules once a month,there is no sign of a decrease in the annual power generation of the PV power station,indicating the feasibility of constructing a PV power station in such areas.
coal-fired power plantsash storage yardPV power stationfeasibility analysisconserve energy and reduce emissions